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Abstract #0558

3D-black-blood 3T-MRI for the diagnosis of thoracic large vessel vasculitis: a feasibility study

Karla Maria Treitl 1 , Stefan Maurus 1 , Hendrik Kooijmann-Kurfuerst 2 , Eva Coppenrath 1 , Nora N. Kammer 1 , Marcus Treitl 1 , Maximilian Reiser 1 , and Tobias Saam 1

1 Institute for clinical radiology, LMU Munich, Munich, Bavaria, Germany, 2 Philips Healthcare, Philips GmbH, Hamburg, Hamburg, Germany

FDG-PET/CT is the gold standard for the diagnosis and the monitoring of large vessel vasculitis, but it causes repetitive radiation exposure. The presented, novel, isotropic-high-resolution three-dimensional T1w TSE sequence (VISTA Volumetric ISotropic TSE Acquisition) was evaluated in 23 patients with suspected large vessel vasculitis and 25 controls. The study showed that the navigated 3D black-blood MRI technique with peripheral pulse unit triggering is able to diagnose large vessel vasculitis of the thoracic vessels in 10-12 minutes scan time. Future studies are necessary to evaluate VISTA-MRI for monitoring of anti-inflammatory therapies and to perform a comparison with PET/CT and ultrasound.

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